Engine Specifications - Yamaha 2008 YW50X Service Manual

ENGINE SPECIFICATIONS

Engine
Engine type
Displacement
Cylinder arrangement
Bore × stroke
Compression ratio
Engine idle speed
Fuel
Recommended fuel
Fuel tank capacity
Total
Engine oil
Lubrication system
Recommended oil
Quantity
Oil tank
Final gear oil
Recommended oil
Periodic oil change
Total amount
Air filter
Air filter type
Starting system type
Carburetor
Type
Manufacturer
Spark plug
Model (manufacturer) × quantity
Spark plug gap
Cylinder head
Volume
Maximum warpage
* Lines indicate straighedge measurement
ENGINE SPECIFICATIONS
Item
Standard
Air-cooled 2-stroke reed valve ...
0.049L (49cm³, 2.99cu-in)
Forward inclined single cylinder ...
40.0 × 39.2mm (1.57 × 1.54in) ...
7.01:1
1800 ~ 1900r/min
Unleaded gasoline only (USA) ...
Regular unleaded gasoline
only (CAN)
5.7L (1.25 Imp gal, 1.50 US gal) ...
Separate lubrication
YAMALUBE 2 or air cooled
2-stroke engine oil
1.4L (1.23 Imp qt, 1.48 US qt)
SAE85W140 hypoid gear oil
0.11L (0.10 Imp qt, 0.12 US qt) ...
0.13L (0.12 Imp qt, 0.14 US qt) ...
Wet element
Electric and kick starter
Y14P-13E
TEIKEI
BPR7HS (NGK ) × 1
0.6 ~ 0.7mm (0.024 ~ 0.028in) ...
5.54 ~ 5.84cm³
(0.34 ~ 0.36cu-in)
...
2-2
SPEC
Limit
...
...
...
...
...
...
...
...
...
...
...
...
...
...
0.05mm
(0.0020in)